Debug and Maintain Your Spring Boot Apps

So you have decided to build an application using Spring Boot? Sooner or later, something will go wrong. It does not matter how experienced we are. How will Spring Boot help us figure out what went wrong and fix things? This talk introduces lots of tools to help us debug and manage "bootiful" apps. You will learn how to use Boot's autoconfiguration report, override Boot's settings & beans, create custom metrics/health checks/app info, and create custom JMX info & custom CRaSH commands.

Code at https://github.com/gregturn/debug-your-spring-boot-app

Transcript

1. Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a
   
   Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
   Debug and Maintain Your
   Spring Boot App
   Greg Turnquist
   @gregturn
   gturnquist@pivotal.io
   github.com/gregturn
   

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2. Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a
   
   Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
   GregLTurnquist.com/list
   

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3. Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a
   
   Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
   3
   Learn More. Stay Connected.
   § Learn how to debug Boot apps
   § Build support tools for Ops, your
   manager, and others
   § Have FUN!
   Twitter: twitter.com/springcentral
   YouTube: spring.io/video
   LinkedIn: spring.io/linkedin
   Google Plus: spring.io/gplus
   

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4. Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a
   
   Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
   

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5. Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a
   
   Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
   “Bootiful” Applications
   § Auto-configured beans
   § Externalized, profile-specific properties
   § Make JAR not WAR
   § Pre-picked, harmonized libraries
   § ..and more!
   5
   

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6. Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a
   
   Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
   6
   “Working with Spring Boot is like pair-
   programming with the Spring
   developers.
   Josh Long @starbuxman
   

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7. Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a
   
   Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
   

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8. Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a
   
   Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
   Auto-configured beans are suddenly frightening!
   § What did Spring Boot do?
   § Why did it do it?
   § What can I do?
   8
   

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9. Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a
   
   Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
   

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10. Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a
    
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    router101
    multiplex205
    switch1143
    ActiveMQ
    

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11. Demo
    Unless otherwise indicated, these slides are 

    © 2013-2015 Pivotal Software, Inc. and licensed under a
    Creative Commons Attribution-NonCommercial
    license: http://creativecommons.org/licenses/by-nc/3.0/
    

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12. Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a
    
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    Spring Boot Actuator (spring-boot-actuator)
    12
    Endpoint Provides
    /autoconfig Rules that matched, and rules that did not
    /health Health check for scripts and Ops team
    /configprops Property settings
    /info Custom application information
    

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13. Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a
    
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    

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14. Demo
    Unless otherwise indicated, these slides are 

    © 2013-2015 Pivotal Software, Inc. and licensed under a
    Creative Commons Attribution-NonCommercial
    license: http://creativecommons.org/licenses/by-nc/3.0/
    

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15. Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a
    
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    Non-functional features
    § Auto-configuration report
    § Custom health checks
    § Application information
    § Custom metrics
    § Custom CRaSH commands to mix metrics AND health
    § …anything else?
    15
    

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16. Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a
    
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    

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17. Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a
    
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    

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18. Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a
    
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    springone2gx.com
    Spring Data REST:
    Data Meets Hypermedia + Security
    

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19. Unless otherwise indicated, these slides are © 2013-2015 Pivotal Software, Inc. and licensed under a
    
    Creative Commons Attribution-NonCommercial license: http://creativecommons.org/licenses/by-nc/3.0/
    Debug and Maintain Your
    Spring Boot App
    Greg Turnquist, test-bitten script junky, Pivotal
    @gregturn
    

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